The Great Wall of China


The Great Wall of China is the world’s longest man-made structure, stretching over a formidable  21,196 km (13,171miles). It is a huge serrated wall, zigzags to the north and northwest of Beijing. The construction began during the Zhou Dynasty in the seventh century BC. Small vassal states built their own walls to keep off invaders. In 221BC, when the Qin dynasty unified China, it also joined the walls to hold off tribal invaders from the north and extended the walls by more than 10,000 miles or 16093 kilometres. The Great Wall was renovated from time to time after the Qin Dynasty. A major renovating started with the founding of Ming Dynasty in 1368, and took 200 years to complete. The wall we see today is almost exactly the results of their effort. With a total length was then of over 6000 kilometres, it expands to the Jiayu Pass in Ganso Province in the west of the Yalu River in Liaoning Province in the east. What lies north of Beijing is but a small part of it


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